I've done a bunch of carbon parts for my racing bicycles. All wet-layup, no pump. If you're looking to do a few parts, it's very cheap and easy (with some practice). A bunch of parts is probably a lot more expensive to do it right, while if you're going to have a business, tons of carbon is just done in Asia and resold. Most icycle carbon comes from Singapore, China, etc. not Italy, France, and the US like it's labelled.
As far as respirator is concerned, you only need a mask if you're grinding the stuff (if you're sanding, wet sand it). You won't kick up any dust with simple shears. Venthilation is required for the resins and since it's fall now, you'll need to pay careful attention to the temps your resins cure at. Low temperatures will retard or inhibit curing.
You'll probably be getting whatever fiber you can find, but if you're doing complex contours then the weave and weight of the fiber will make the difference. I think I've got about 3HS (can't remember the weight) in my garage which works for just about everything I've tried.
I don't know about rubber gloves, but I'm pretty sure latex is bad. I tend to use disposable vinyl gloves instead. As a release material, I've had excellent luck with the rolls of thin plastic "painters mask" available at Home Depot (only for informal molding). It allows for compaction, outgassing, and the surfaces are almost ready for additional bonding (no blushing, etc.)
Making parts look good really isn't a big problem. Whatever you get after it's molded/trimmed/shaped, hit it with like 120 or 150 wet sandpaper and then reapply a smooth coat of resin once or twice.